USA.com / Maryland / Frederick County / Monrovia, MD / 21770 / Population and Races / Historical Household and Family Data
21770 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 5,457
| 21770 Zip Code | Maryland | U.S. | |
| Total Households | 1,813, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 3.01, see rank | 2.67 | 2.63 |
| 1 Person Households | 251, 13.84%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 1,562, 86.16%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 1,493, 82.35%, see rank | 67.07% | 66.22% |
| Average Family Size | 3.39, see rank | 3.35 | 3.32 |
| Married-Couple Family | 1,341, 73.97%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 320, 17.65%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 5,164
| 21770 Zip Code | Maryland | U.S. | |
| Total Households | 1,739, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.97, see rank | 2.61 | 2.58 |
| 1 Person Households | 201, 11.56%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 1,538, 88.44%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 1,490, 85.68%, see rank | 67.10% | 66.43% |
| Average Family Size | 3.20, see rank | 3.15 | 3.14 |
| Married-Couple Family | 1,313, 75.50%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 249, 14.32%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 5,923
| 21770 Zip Code | Maryland | U.S. | |
| Total Households | 1,886, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 3.14, see rank | 2.64 | 2.61 |
| 1 Person Households | 170, 9.01%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 1,716, 90.99%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 1,658, 87.91%, see rank | 66.97% | 66.47% |
| Average Family Size | 3.40, see rank | 3.32 | 3.29 |
| Married-Couple Family | 1,518, 80.49%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 228, 12.09%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 5,460
| 21770 Zip Code | Maryland | U.S. | |
| Total Households | 1,742, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 3.13, see rank | 2.61 | 2.59 |
| 1 Person Households | 131, 7.52%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 1,611, 92.48%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 1,556, 89.32%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.31, see rank | 3.13 | 3.14 |
| Married-Couple Family | 1,417, 81.34%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 186, 10.68%, see rank | 31.38% | 31.94% |
* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.